Optical disk and optical disk apparatus
US6549498B1 · kind B1 · utility
7Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2001 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Aug 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2525
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disc in a sample servo format applicable to high density recording in which a control track area is formed without reducing format efficiency of a rewritable track area and an optical disc device that can read out control information in a short time with a simple circuit configuration are provided. For this purpose, in the optical disc, a space of a predetermined length where emboss prepits do not exist is arranged for each segment in the control track area, following a data area where control data are recorded by emboss prepits as a clock mark, wobble marks and an address mark.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.